Home / 752.50-1,120.75

Finding the Third Proportional to 752.50 and 1,120.75

Calculator

Solution

The third proportional to 752.50 and 1,120.75 is: 1,669.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    752.50 : 1,120.75 = 1,120.75 : x
  2. Step 2: Convert to fraction form
    752.50/1,120.75 = 1,120.75/x
  3. Step 3: Cross multiply
    752.50x = 1,120.75 × 1,120.75
  4. Step 4: Simplify right side
    752.50x = 1,256,080.56
  5. Step 5: Solve for x
    x = 1,256,080.56/752.50
  6. Step 6: Final answer
    x = 1,669.21

Related Problems

Find third proportional to 376.25 and 560.38
Half scale
Find third proportional to 1,505 and 2,241.50
Double scale
Find third proportional to 755 and 1,124
Similar ratio
Find third proportional to 1,128.75 and 1,681.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.